JPH0641012A - Production of optically active 3-phenyl-3-hydroxypropionic ester - Google Patents

Production of optically active 3-phenyl-3-hydroxypropionic ester

Info

Publication number
JPH0641012A
JPH0641012A JP3193552A JP19355291A JPH0641012A JP H0641012 A JPH0641012 A JP H0641012A JP 3193552 A JP3193552 A JP 3193552A JP 19355291 A JP19355291 A JP 19355291A JP H0641012 A JPH0641012 A JP H0641012A
Authority
JP
Japan
Prior art keywords
optically active
phenyl
formula
compound
configuration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3193552A
Other languages
Japanese (ja)
Other versions
JP3158507B2 (en
Inventor
Kazutoshi Miyazawa
和利 宮沢
Mitsuyo Sugiura
光代 杉浦
Yasuyuki Koizumi
靖幸 小泉
Naoyuki Yoshida
尚之 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JNC Corp
Original Assignee
Chisso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chisso Corp filed Critical Chisso Corp
Priority to JP19355291A priority Critical patent/JP3158507B2/en
Publication of JPH0641012A publication Critical patent/JPH0641012A/en
Application granted granted Critical
Publication of JP3158507B2 publication Critical patent/JP3158507B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE:To efficiently obtain esp. under mild conditions the compound useful as an intermediate for various kinds of physiologically active compounds. CONSTITUTION:The optically active 3-phenyl-3-hydroxypropionic ester of formula III can be obtained by reducing a benzoyl acetate of formula I (R is a 1-5C alkyl) with a reducing agent (pref. boron) in the presence of an optically active oxaborolidine of formula II (Pk is phenyl; R' is methyl or H). Use of the compound of the formula II with its configuration being S-configuration can produce the compound as R-modification; while, use of the compound of the formula II with its configuration being R-configuration can produce the compound as S-modification. This method, which is not a method for racemic modification to be put to optical resolution, can produce the compound at the theoretical yield of 100%, having such advantages that the reaction proceeds adequately at room temperature and the substrate concentration can be raised in the reaction.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、生理活性化合物を製造
するための出発原料として有用な光学活性3−フェニル
−3−ヒドロキシプロピオン酸エステルの製造方法に関
するものである。
TECHNICAL FIELD The present invention relates to a process for producing an optically active 3-phenyl-3-hydroxypropionic acid ester useful as a starting material for producing a physiologically active compound.

【0002】[0002]

【従来の技術】[Prior art]

【0003】[0003]

【化4】 [Chemical 4]

【0004】式(4)で示される光学活性フルオキセチ
ン塩酸塩は、強い抗うつ作用を示すことが知られてい
る。現在フルオキセチン塩酸塩は、ラセミ体で製造さ
れ、用いられているが、その立体配置の違いにより示さ
れる薬理活性に大きな違いがあることが知られている。
そのため実用に際しては、一方の光学活性体のみを用い
ることが好ましい(D.W. Robertson et al., J. Med. C
hem., 31, 1412(1988), 31., 185(1988)) 。
It is known that the optically active fluoxetine hydrochloride represented by the formula (4) exhibits a strong antidepressant action. Currently, fluoxetine hydrochloride is produced and used in a racemic form, but it is known that there is a large difference in the pharmacological activity exhibited by the difference in its configuration.
Therefore, in practical use, it is preferable to use only one of the optically active substances (DW Robertson et al., J. Med. C
hem., 31 , 1412 (1988) , 31. , 185 (1988)).

【0005】光学活性フルオキセチン塩酸塩の効率的な
製造方法としては、次の方法が知られている(吉田ら、
特願平2−102811)。
The following method is known as an efficient method for producing optically active fluoxetine hydrochloride (Yoshida et al.,
Japanese Patent Application No. 2-102811).

【0006】[0006]

【化5】 [Chemical 5]

【0007】即ち、光学活性3−フェニル−3−ヒドロ
キシプロピオン酸エチル(3)においてRがエチル基の
ものにメチルアミンを作用させ、アミド(5)としたの
ち、カルボニル基の還元を行いアミン(6)とする。こ
のものにp−トリフルオロメチルクロロベンゼンを作用
させ、トリフルオロ体(7)としたのち、塩化水素ガス
を作用させ、光学活性フルオキセチン塩酸塩(4)が製
造できる。即ち、光学活性3−フェニル−3−ヒドロキ
シプロピオン酸エチルから4段階で光学活性フルオキセ
チン塩酸塩が製造できる効率的な方法である。
That is, in optically active ethyl 3-phenyl-3-hydroxypropionate (3), when R is an ethyl group, methylamine is allowed to act to form an amide (5), and then the carbonyl group is reduced to give an amine ( 6). This is reacted with p-trifluoromethylchlorobenzene to form a trifluoro body (7), and then hydrogen chloride gas is reacted to produce an optically active fluoxetine hydrochloride (4). That is, it is an efficient method for producing optically active fluoxetine hydrochloride in four steps from optically active ethyl 3-phenyl-3-hydroxypropionate.

【0008】以上の様に、光学活性3−フェニル−3−
ヒドロキシプロピオン酸エチル (3)を出発物質に用いる
ことによって光学活性フルオキセチン塩酸塩が効率よく
製造できるが、出発物質の光学活性3−フェニル−3−
ヒドロキシプロピオン酸エステルの製造方法として、現
在知られているいくつかの手法にはそれぞれ問題点があ
る。
As described above, optically active 3-phenyl-3-
Optically active fluoxetine hydrochloride can be efficiently produced by using ethyl hydroxypropionate (3) as a starting material.
As a method for producing a hydroxypropionic acid ester, some currently known methods have problems.

【0009】[0009]

【化6】 [Chemical 6]

【0010】すなわち、ラセミ体の3−フェニル−3−
ヒドロキシプロピオン酸エチルにリパーゼPs(天野製薬
株式会社製)の存在下、カプロン酸ビニルを作用させ、
不斉エステル交換反応を行い光学分割を行っている例が
あるが、ラセミ体を光学分割する場合、得られる光学活
性体の収率は最大でも50%でしかない(特願平2−9500
4 号)。
That is, racemic 3-phenyl-3-
In the presence of lipase Ps (manufactured by Amano Pharmaceutical Co., Ltd.), ethyl hydroxypropionate is allowed to act with vinyl caproate,
Although there is an example in which an asymmetric transesterification reaction is performed for optical resolution, the maximum yield of the optically active substance obtained is only 50% when the racemate is optically resolved (Japanese Patent Application No. 2-9500).
No. 4).

【0011】[0011]

【化7】 [Chemical 7]

【0012】また、ベンゾイル酢酸エチルを光学活性ジ
アミンの存在下、不斉還元することによって光学活性体
を得る方法も報告されているが、これは反応温度が−10
0 ℃と厳しい上、不斉収率も44%eeと低く効率的である
とは言えない(向山ら Chem.Lett., 813(1985)) 。
A method for obtaining an optically active substance by asymmetric reduction of ethyl benzoylacetate in the presence of an optically active diamine has also been reported, but this has a reaction temperature of -10.
It is severe at 0 ° C and the asymmetric yield is as low as 44% ee, which cannot be said to be efficient (Mukoyama et al. Chem. Lett., 813 (1985)).

【0013】[0013]

【化8】 [Chemical 8]

【0014】またベンゾイル酢酸エチルをパン酵母で不
斉還元し、光学活性3−フェニル−3−ヒドロキシプロ
ピオン酸エチルを得る方法も報告されているが、基質濃
度が低いうえ、後処理も煩雑で工業的に有利であるとは
言い難い(サンタニエロら、J. Chem. Soc. Perkin Tra
ns.,, 2753 (1989))。この様に従来の製造方法には、
多くの問題点があり、これら問題点を解決した製造方法
が特望されてきた。
Further, a method of asymmetrically reducing ethyl benzoylacetate with baker's yeast to obtain optically active ethyl 3-phenyl-3-hydroxypropionate has been reported, but the substrate concentration is low and the post-treatment is complicated and industrial. It is hard to say that it is advantageous (Santa Niero et al., J. Chem. Soc. Perkin Tra
ns., 1 , 2753 (1989)). Thus, in the conventional manufacturing method,
There are many problems, and a manufacturing method that solves these problems has been desired.

【0015】[0015]

【発明が解決しようとする課題】本発明は、かかる問題
点を解決し、各種生理活性化合物の合成中間体として有
用である光学活性3−フェニル−3−ヒドロキシプロピ
オン酸エステルを効率的に、特に温和な条件で製造する
方法を提供するものである。
DISCLOSURE OF THE INVENTION The present invention solves the above problems and provides an optically active 3-phenyl-3-hydroxypropionic acid ester which is useful as a synthetic intermediate for various physiologically active compounds efficiently, particularly The present invention provides a method for producing under mild conditions.

【0016】[0016]

【課題を解決するための手段】本発明は、一般式The present invention has the general formula

【0017】[0017]

【化9】 [Chemical 9]

【0018】(但し上式においてRは炭素数1〜5のア
ルキル基を示す。)で表される化合物を次式
(In the above formula, R represents an alkyl group having 1 to 5 carbon atoms.)

【0019】[0019]

【化10】 [Chemical 10]

【0020】(但し上式においてPhはフェニル基を、R'
はメチル基または水素原子を示す。)で表される光学活
性オギザザボロリジンの存在下、還元することを特徴と
する次式
(In the above formula, Ph represents a phenyl group, R '
Represents a methyl group or a hydrogen atom. ) Represented by the following formula characterized by reduction in the presence of optically active oxazaborolidine

【0021】[0021]

【化11】 [Chemical 11]

【0022】(但し上式においてRは炭素数1〜5のア
ルキル基を示す。)で表される光学活性3−フェニル−
3−ヒドロキシプロピオン酸エステルの製造方法であ
る。本発明の反応は、ベンゾイル酢酸エステル(1)、
オギザザボロリジン(2)の混合物に還元剤を加えるこ
とによって行われる。使用するオギザザボロリジン
(2)の添加量はベンゾイル酢酸エステル(1)に対し
0.1 当量以下で充分であり、それ以上、使用することに
よるメリットはない。
(In the above formula, R represents an alkyl group having 1 to 5 carbon atoms.) Optically active 3-phenyl-
It is a method for producing a 3-hydroxypropionic acid ester. The reaction of the present invention comprises benzoyl acetate (1),
This is done by adding a reducing agent to the mixture of oxazaborolidine (2). The addition amount of Ogizazaborolidine (2) to be used is relative to benzoyl acetate (1)
0.1 equivalent or less is sufficient, and there is no merit by using it.

【0023】還元剤としては、ボランが好適であるが、
市販品として入手容易なボランテトラヒドロフラン(BH
3-THF)錯体を使用して何ら問題はない。反応温度は室温
近傍、すなわち5℃ないしは35℃で充分であり、この条
件での反応時間は、1分ないしは1時間である。使用す
る溶媒は非水溶媒が好適であるが、好ましくはテトラヒ
ドロフランである。
Borane is preferable as the reducing agent,
Borane tetrahydrofuran (BH
There is no problem using the 3- THF) complex. It is sufficient that the reaction temperature is near room temperature, that is, 5 ° C to 35 ° C, and the reaction time under this condition is 1 minute to 1 hour. The solvent used is preferably a non-aqueous solvent, but is preferably tetrahydrofuran.

【0024】また反応の後処理は、次の様に簡単に行わ
れる。すなわち、反応終了後、メタノール、水を順次加
えたのち、塩酸酸性とし、ジエチルエーテル、トルエ
ン、酢酸エチルなどの有機溶媒で抽出したのち、溶媒を
留去し、残基を減圧蒸留またはカラムクロマトグラフィ
ーに付し、目的物である光学活性3−フェニル−3−ヒ
ドロキシプロピオン酸エステルが得られる。更に光学活
性3−フェニル−3−ヒドロキシプロピオン酸エステル
(1)の両鏡像体の作り分けは、使用するオギザザボロ
リジン(2)を選択することにより任意に行える。即
ち、立体配置がS−配置であるオギザザボロリジン
(2)を用いることによってR体のエステル(3)を、
R−配置の(2)を用いることによってS体のエステル
(3)を製造することができる。
The post-treatment of the reaction is simply carried out as follows. That is, after completion of the reaction, methanol and water were sequentially added, acidified with hydrochloric acid, extracted with an organic solvent such as diethyl ether, toluene, ethyl acetate, the solvent was distilled off, and the residue was distilled under reduced pressure or column chromatography. The desired product, optically active 3-phenyl-3-hydroxypropionic acid ester, is obtained. Further, both enantiomers of the optically active 3-phenyl-3-hydroxypropionic acid ester (1) can be selectively produced by selecting the oxazaborolidine (2) to be used. That is, by using the oxazaborolidine (2) having the S-configuration in the configuration, the R-ester (3) is converted into
By using the R-configuration (2), the S-form ester (3) can be produced.

【0025】また、本発明に用いるラセミ体の3−フェ
ニル−3−ヒドロキシプロピオン酸エステル(1)は、
種々の方法によって製造できるが、次に示す方法が効率
的に最も有利であると思われる。
The racemic 3-phenyl-3-hydroxypropionic acid ester (1) used in the present invention is
Although it can be produced by various methods, the following method seems to be most advantageous in terms of efficiency.

【0026】[0026]

【化12】 [Chemical 12]

【0027】即ち、アセトフェノン(8)に塩基性条件
下、炭酸エステルを作用させベンゾイル酢酸エステル
(1)が収率よく製造できる。また本発明で使用するオ
ギザザボロリジン(2)は既に知られており、EP3051
80 (1989, 3. 1) にその記述がある。明細書中には、プ
ロキラルケトンをオギザザボロリジン(2)の存在下、
不斉還元し、光学活性アルコールを製造する方法が記載
されているが、プロキラルケトンとして好ましいと述べ
られているアリールアルキルケトンは、アセトフェノ
ン、プロピオフェノン、クロロアセトフェノン、2−ア
セチル−6−メトキシナフタレンの4種のみであり、ア
リールアルキルケトンのアルキル基中にエステル基が含
まれているプロキラルアリールアルキルケトンについて
の記述は一切ない。
That is, benzoyl acetic acid ester (1) can be produced in good yield by reacting acetophenone (8) with a carbonic acid ester under basic conditions. Ogizazaborolidine (2) used in the present invention is already known, and EP3051
80 (1989, 3.1). In the specification, a prochiral ketone is added in the presence of oxazaborolidine (2),
Although a method for producing an optically active alcohol by asymmetric reduction is described, arylalkylketones described as preferable as a prochiral ketone include acetophenone, propiophenone, chloroacetophenone, and 2-acetyl-6-methoxy. There are only four kinds of naphthalene, and there is no description about a prochiral arylalkylketone having an ester group in the alkyl group of an arylalkylketone.

【0028】更に、この光学活性オギザザボロリジン
(2)は、入手容易なプロリン(9)から容易に製造さ
れる。
Further, this optically active oxazaborolidine (2) can be easily produced from easily available proline (9).

【0029】[0029]

【化13】 [Chemical 13]

【0030】即ち、光学活性なプロリン(9)から既知
の方法によって製造されるα,α−ジフェニル−2−ピ
ロリジンメタノール(10)にボランを作用させることに
よって R' が水素原子のものが、また、ホウ酸メチルを
作用させることによって R’がメチル基であるものが製
造できる。α,α−ジフェニル−2−ピロリジンメタノ
ール(10) は、市販されているが、文献既知の方法によ
って両鏡像体とも容易に製造できる(プールターら、J.
Chem. Soc., Perkin Trans., (1985) 、コーリー
ら、J. Am. chem. Soc., 109, 7925(1987)) 。
That is, by reacting α, α-diphenyl-2-pyrrolidinemethanol (10) produced from optically active proline (9) by a known method with borane, R'is hydrogen atom, , R'is a methyl group can be produced by reacting methyl borate. α, α-Diphenyl-2-pyrrolidinemethanol (10) is commercially available, but both enantiomers can be easily produced by a method known in the literature (Plutter et al., J.
Chem. Soc., Perkin Trans., 2 (1985), Corey et al., J. Am. Chem. Soc., 109 , 7925 (1987)).

【0031】[0031]

【発明の効果】本発明における製造方法の効果を次に列
記する。 (1)ラセミ体を光学分割する方法ではないので、100 %
の理論収率で製造ができる。 (2)室温反応で製造が行える。 (3)反応における基質濃度が高い。
The effects of the manufacturing method of the present invention are listed below. (1) 100% because it is not a method of optical resolution of racemate
It can be manufactured with a theoretical yield of. (2) It can be manufactured by reaction at room temperature. (3) The substrate concentration in the reaction is high.

【0032】[0032]

【実施例】以下、実施例によって本発明をより具体的に
説明する。 実施例1 光学活性3−フェニル−3−ヒドロキシプロピオン酸エ
チル((3)式において、Rがエチル基であるもの)の
製造 ベンゾイル酢酸エチル 13.9g (72ミリモル) 、(S)−
テトラヒドロ−1−メチル−3,3−ジフェニル−1
H,3H−ピローロ−〔1,2−C〕〔1,3,2〕オ
ギザザボロール 0.1g (3.6ミリモル) 、テトラヒドロフ
ラン 40ml の混合物に室温でボラン−THF 錯体(1.0M TH
F 溶液)43mlを滴下したのち同温度で20分攪拌した。
The present invention will be described in more detail with reference to the following examples. Example 1 Production of optically active ethyl 3-phenyl-3-hydroxypropionate (wherein R in formula (3) is an ethyl group) Ethyl benzoyl acetate 13.9 g (72 mmol), (S)-
Tetrahydro-1-methyl-3,3-diphenyl-1
A mixture of 0.1 g (3.6 mmol) of H, 3H-pyrrolo- [1,2-C] [1,3,2] oxazaborol and 40 ml of tetrahydrofuran was added at room temperature to borane-THF complex (1.0 M TH).
43 ml of F solution) was added dropwise, and the mixture was stirred at the same temperature for 20 minutes.

【0033】氷浴で10℃以下に冷却したのち、メタノー
ル12ml (0.29モル) 、水10mlを加え攪拌し、さらに塩酸
酸性とした。酢酸エチルで抽出したのち、無水硫酸マグ
ネシウム上で乾燥し、さらに溶媒を留去し、残渣として
油状の粗製物を得た。この粗製物をシリカゲルカラムク
ロマトグラフィー (溶出液;トルエン:酢酸エチル=
9:1)に付し、R−3−フェニル−3−ヒドロキシプ
ロピオン酸エチル 7.0g(51%)を得た。
After cooling to 10 ° C. or lower in an ice bath, 12 ml (0.29 mol) of methanol and 10 ml of water were added and the mixture was stirred and acidified with hydrochloric acid. After extraction with ethyl acetate, the extract was dried over anhydrous magnesium sulfate, and the solvent was distilled off to obtain an oily crude product as a residue. This crude product was subjected to silica gel column chromatography (eluent; toluene: ethyl acetate =
9: 1) to obtain 7.0 g (51%) of ethyl R-3-phenyl-3-hydroxypropionate.

【0034】1H-NMR(90MHz, CDCl3)δ: 7.34(s, 5H),
5.21-5.04(m, 1H), 4.18(q, 2H), 3.28(d, 1H),2.73(d,
2H), 1.26(t, 3H) 。 得られたR−3−フェニル−3−ヒドロキシプロピオン
酸エチルを特願平1−176580号の方法に従い、光学分割
カラム スミキラルOA−3,000 を用い光学純度を測定し
たところ、88%eeであると決定された。
1 H-NMR (90 MHz, CDCl 3 ) δ: 7.34 (s, 5H),
5.21-5.04 (m, 1H), 4.18 (q, 2H), 3.28 (d, 1H), 2.73 (d,
2H), 1.26 (t, 3H). The optical purity of the obtained ethyl R-3-phenyl-3-hydroxypropionate was measured according to the method of Japanese Patent Application No. 1-176580 using an optical resolution column, Sumikiral OA-3,000, and was determined to be 88% ee. Was done.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 一般式 【化1】 (但し上式において Rは炭素数1〜5のアルキル基を示
す。)で表される化合物を次式 【化2】 (但し上式においてPhはフェニル基を、R'はメチル基ま
たは水素原子を示す。)で表される光学活性オギザザボ
ロリジンの存在下、還元することを特徴とする次式 【化3】 (但し上式において Rは炭素数1〜5のアルキル基を示
す。)で表される光学活性3−フェニル−3−ヒドロキ
シプロピオン酸エステルの製造方法。
1. A general formula: (In the above formula, R represents an alkyl group having 1 to 5 carbon atoms.) The compound represented by the following formula: (In the above formula, Ph represents a phenyl group and R'represents a methyl group or a hydrogen atom.) Reduction in the presence of an optically active oxazaborolidine represented by the following formula: (However, in the above formula, R represents an alkyl group having 1 to 5 carbon atoms.) A method for producing an optically active 3-phenyl-3-hydroxypropionic acid ester.
JP19355291A 1991-07-09 1991-07-09 Method for producing optically active 3-phenyl-3-hydroxypropionate Expired - Fee Related JP3158507B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19355291A JP3158507B2 (en) 1991-07-09 1991-07-09 Method for producing optically active 3-phenyl-3-hydroxypropionate

Applications Claiming Priority (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016421A1 (en) * 1995-10-31 1997-05-09 Suntory Limited Process for producing optically active trans-vinyl sulfide alcohols
JP2005532996A (en) * 2002-02-27 2005-11-04 フェリング ベスローテン フェンノートシャップ Intermediates and methods for producing heptapeptide oxytocin analogs
EP1787975A4 (en) * 2004-09-10 2008-07-09 San Ei Gen Ffi Inc Processes for production of wine lactone and its intermediates and application of the lactone
WO2016133020A1 (en) * 2015-02-16 2016-08-25 日産化学工業株式会社 Method for producing optically active allyl alcohol compound

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016421A1 (en) * 1995-10-31 1997-05-09 Suntory Limited Process for producing optically active trans-vinyl sulfide alcohols
US6049009A (en) * 1995-10-31 2000-04-11 Suntory Limited Production method of optically active trans-vinylsulfide alcohol
JP2005532996A (en) * 2002-02-27 2005-11-04 フェリング ベスローテン フェンノートシャップ Intermediates and methods for producing heptapeptide oxytocin analogs
EP1787975A4 (en) * 2004-09-10 2008-07-09 San Ei Gen Ffi Inc Processes for production of wine lactone and its intermediates and application of the lactone
WO2016133020A1 (en) * 2015-02-16 2016-08-25 日産化学工業株式会社 Method for producing optically active allyl alcohol compound

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